0 a piece of cloth, usually rectangular and attached to a pole at one edge, that has a pattern that shows it represents a country or a group, or has a particular meaning -- 旗,旗幟
1 a flagstone -- (同 flagstone)
2 a flower that is a type of large iris -- 菖蒲(一種大型鳶尾花)
3 to put a mark on something so it can be found easily among other similar things -- 給…做標記
4 to become tired, weaker, or less effective -- 變得疲倦;興趣衰減
I was starting to flag after the ninth mile. 走了九英里後,我開始感到疲倦了。
The conversation was flagging. 談話越來越乏味了。